Temperato re-regulator



No Model.)

J. F. MOELROY.

TEMPERATURE REGULATOR.

No. 473.636. Patented Apr. 26, 1892.

wfvay as UNITED STATES PATENT OFFIC JAMES F. MOELROY, OF ALBANY, NEW YORK, ASSIGN OR TO THE CONSOLI- DATED QAR-I-IEATING COMPANY, OF IVHEELING, WEST VIRGINIA.

TEM PERATU RE- REG U LATO R.

SPECIFICATION forming part of Letters Patent No. 473,636, dated April 26, 1892. Application filed September 18, 1891. Serial No. 406,107. (No model.)

1'0 aZZ whom it may concern: a ball-and-socket joint 9 with the valve-stem Be it known that I, .TAMEs F. McELRoY, a h, which passes through the usualstuffing-box citizen of the United States, residing at Al 1' and through the bearing in the frame F, sebany, in the county of Albany and State of cured to the top of the valve-casing,provided 5 New York, have invented certain new and at its outer end with a nut 70. Z is a spring 5 useful Improvements in Temperature-Regw clamped between this nut and the top of the lators, of which the followingisaspecification, frame F for. the purpose of normally holding reference being had therein to the accompathe valve open. nying drawings. II is a rod connected at its upper end with IO This invention relates to new and useful ima bell-crank lever I, pivoted to the plateAand 6o provements in temperature-regulators; and connected at its upper end centrally with the the invention consists in the peculiar conthermostat. At its lower end this rod connects struction, arrangement, and combination of with one arm of the bell-crank lever j, pivoted. the various parts of the thermostat, controlin the frame F. The other arm of this lever ling-valve, and connecting mechanism, whereis connected to the valve-stem 72, preferably by 65 by I produce an efficient and economical demeans of pins in, formed on the sides thereof. vice, all as more fully hereinafter described. The parts being thus constructed, the tem- In the drawings, Figure 1 is a front elevaperature being below the point at which itis tion of myimproved device, showing the valve desired to be maintained, the spring Z will lift in section. Fig. 2 is aside elevation thereof, the valve from its seat, allowing the steam 70 with the valve connectionsin section. Fig. 3 to pass through the valve into the heating is a horizontal longitudinal section taken censystem. As soon as the temperature in the trally through the frame on the valve-casing. apartment has risen above the temperature A is a plate forming a supporting-frame for desired to be maintained the expansion of the 2 5 my thermostat, which consists of the cells B, thermostat-cells will rock the bell-crank lever 75 secured together upon the hub 0.] This hub 1, drawing up upon the connecting-rod H, is screw-threaded and enters a screw-thread ed rocking the bell-crank lever j, compressing the aperture in the frame, whereby the cells may spring Z, and closing the valve, shutting ofi be adjusted to orfrom the frame. This frame the steam.

is secured to the wall of a room or a railway- In previous constructions of temperature- 80 car in proper relation to the valve which the regulators the thermostat has acted upon the thermostat is to control. connecting-rod with a compression force,

At the lower end of the frameAis provided which tends to bend or spring the rod out of an aperturedscrew-threaded lugD, into which alignment, causing a binding at points and 5 is secured the upper end of the tubular frame also shortening the rod, so as to prevent its ef-. 85

E,preferably a pipe, and forming a rigid confective working. nection between the frame A and the frame By utilizing the bell-crank leverI orasimi- F, secured to the valve-casing G. The valve lar lever to cause the connecting-rod to pull is located in the steam-supply pipe and 0011- the valve to its closed "position I subject this 40 trols the supply of steam to the apartment or rod to a tensile strain, which obviates all the 0 car the temperature of which is designed to trouble arising from using it under compresbe controlled, or it may be a damper or vension. tilator instead of a steam-valve. What I claim as my invention is- In the valve-casing a is the inlet-opening; 1. In atemperature-regulator, the combinab, the outlet-opening; c,apartition separating tion, with a frame, a thermostat, and a con- 5 the openings, centrally apertured to receive necting-rod, of a valve, a stem having a flexithe upper end of the apertured plug d, having ble connection with the valve and arranged at a nut e on the outside of the casing, by means right angles to the connecting-rod, aspring 011 of which it may be adjusted. the stem normally holding the valve open, and

f is the valve-disk, connected by means of a bell-crank lever engaging withits respective I00 ends the connecting-rod and the valve-stem at a point between the spring and valve, sub stantially as described.

2. In a temperature-regulator, the combination, with a supporting-frame, a thermostat thereon, a bell-crank actuated by the thermostat, and a connecting-rod on the bell-crank, of a valve having a stem extending out at right angles to the connecting-rod, a spring on the stem normally holding the valve open, and a bell-crank actuated by the connecting-rod to force the valve to its seat against the tension of the spring, substantially as described.

3. In a temperature-regulator, the combination, with a supporting-frame, a thermostat thereon, a connecting-rod actuated by the thermostat, a tubular connection through which the connecting-rod passes, and a valvecasing, of a frame between the Valvecasing and tube, a valve in the valve-casing, a stem 0n the valve arranged at right angles to the connecting-rod and passing through the frame on the valve-casing, a spring on the stem normally holding thevalve open, and a bellQcrank pivoted to the frame on the valve-casing ata point between the outer end of the stem and the connecting-rod, its ends arranged to engage, respectively, with the connecting-rod and the valve-stem, substantially as described.

4. In a temperature-regulator, the combination, with a supporting-frame, a thermostat, and a connecting-rod actuated by the thermostat, of a valve having a stem arranged at an angle to the connecting-rod, a spring for normally holding the valve from its seat, and a bell-crank arranged between the ends of the stem and engaging, respectively, the lower end of the connecting-rod and the valve-stem, substantially as described.

In testimony whereof I aflix my signature in presence of two witnesses.

JAMES F. 'lVloELROY.

Witnesses:

EDWIN A. SMITH, JOHN B. BRAIDWOOD. 

